Float



(NofModeL) E. D. SHEPARDSON.

FLOAT.

Patented Mar. 27, 1883.

Inaba fz. Wx i UNITED STATES- PATENT OFFICE.

EDWARD D. snEPAnDsON, OF BELLEVUE, OHIO.

- FLOAT.

SPECIFICATION forming' part of Letters Patent No. 274,833, dated `March27,@ 1883.

4 i Application led AngustlS, 1882. (No model.) f

To all whom 'it may concern Be it known that I, EDWARD D. SHEPARD-perienced in producing oats capable of resisting the pressure of steamwhen used in connection with water-regulators for steamboilers, and thatfloats of spherical form used under steam-pressure tend to flatten atthe poles, which tends to produce leakage, and usually terminates incollapsion of the float. To obviate these difficulties and to produce aoat capable of adjustment in the direction of its polar axis is ltheobject of this invention.

In the accompanying drawings I have represented my improved float, inwhich Figure l is an elevation, and Fig. 2 is a central section cutlengthwise of its axis.

In the ligures, A represents an axial -tube of suitable dimensions andof proper material, having its end portions in this instance pro.-videcl with collars c.

At B is represented a shell of spherical form, in this instance producedfrom plate material. This spherical shell is produced in semi-hollowspheres G and D, having their of theaxial tube and their equatorialedges.

centers perforated to receive theiend portions at lb scarfed to overlapeach other, substantially in the manner shown. These parts, constructedin this manner, are of such relative dimensions `that when placed in theposition shown the inner surface of the semi-spheres will rest on thecollars a and the scarfed equatorial edges will overlap each other.

At c, in this instance, are represented collars placed upon the outerend portions of the axial tube, in .contact with the outer surface ofthe semi-spherical shells.- With these several parts constructed andarranged as shown and described the joints in the several parts arebrazed, producing aspherical doat of great strength. t

When greater strength is required on the equatorial line I construct myimproved float as represented in Fig. 3, in which instance theoverlapping edges of the hollowr semi-spheres retain their thickness,but are produced to overlap each other in the manner shown, producing aninward-projecting rib, (represented at 6,) which serves to giveadditional strength on the equatorial line.

At Fig. 4 I have represented another method ot' strengthening the oat onthe equatorial line. In this instance I produce a buttjoint ofthewequatorial meeting edges of the hollowsemi-spherical shells. Thesebutt-joint edges meet centrally'on the periphery ot' an annularequatorial ring, h, placed inside of the sphere. f-

It will be seen that either of the forms represented at Figs. 3 and 4,when properly hrazed, will' give additional vstrength to the sphere,and, in connection with the axial tube, will present a sphere capable ofgreat resistance.

At E is represented a. rod of proper size to pass freely through theaxial tube ot' the spherical oat. This rod is provided withindentations, of countersink form, at proper intervals, adapted toreceive the pointed end portion of a set-screw.

Ati is represented a lcollar of proper size to receive the projectingend portion of the axial tube snugly. This collar is provided with atubular huh, 1t, screw-threaded to receive the set-screw n, ttedtoengage the Vinvdentations in the axial rod. By this arrange4 ment itWill be seen that the float maybe readily adj usted to any point on therod.

I claim as my invention- 1. The combination, with a sphericalshellfloat, of a tubular polar axis, said tubular axis provided withcollars to engage the inner surface of the float-shell, substantially asset forth.

2. The combination, with a spherical shellfloat, ot' a tubular polaraxis, said tubular l as and for the purpose set forth.

axis provided with collars to engage the in- 4. The combination, with afloat having a 1o ner and outer surface of the oat-shell, subtubularaxis and a rod on which to adjust the stantially as set forth. oat, of aset-screw to fix the float in its ad- 3. The combination, with aspherical shelljustable position on the rod, substantially as oat, of atubular polar axis, said tubular set forth.` axis provided with collarsto engage the inner and outer surface of the float-shell, and a rod onwhich to adjust the float, substantially EDW. D. SHEPARDSON. Witnesses:

W. P. COLLINS, W. A. DANGELEISEN.

